.glow-purple:focus {
    border: 1px solid rebeccapurple;
    outline: 0;
    box-shadow: 0 0 3px 0px rebeccapurple;
    -webkit-box-shadow: 0 0 3px 0px rebeccapurple;
}
/*https://segmentfault.com/q/1010000010467476?sort=created*/
/*Coarse*/
/*粗的*/
.coarse-border {
    /*width: 500px;*/
    /*height: 300px;*/
    /*margin: 10px 20px 30px 40px;*/
    border-style: dashed;
    border-width: 50px 60px 70px;
    /*padding: 80px 90px;*/
    /*box-sizing: border-box;*/
    width: fit-content;
    /*合适内部图片的大小*/
}